There's an abstract sense of overpopulated (sometimes described as turn all of texas into Manhattan and abandon the rest of the planet and texas would still only be half full)
And then there's carrying capacity sense of overpopulated. Both food, and west of the Mississippi, water, is actually the limiting reagent (Los Vegas will be simply out of water in a generation or so...). There's already a cultural impedance bump when westerners talk to easterners WRT water "waste".
Mexico is tremendously overpopulated from a carrying capacity standpoint. Canada is in pretty good shape. USA in between.
There's an abstract sense of overpopulated (sometimes described as turn all of texas into Manhattan and abandon the rest of the planet and texas would still only be half full)
And then there's carrying capacity sense of overpopulated. Both food, and west of the Mississippi, water, is actually the limiting reagent (Los Vegas will be simply out of water in a generation or so...). There's already a cultural impedance bump when westerners talk to easterners WRT water "waste".
Mexico is tremendously overpopulated from a carrying capacity standpoint. Canada is in pretty good shape. USA in between.